(19) |
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(11) |
EP 0 126 472 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
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16.07.1986 Bulletin 1986/29 |
(43) |
Date of publication A2: |
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28.11.1984 Bulletin 1984/48 |
(22) |
Date of filing: 18.05.1984 |
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(84) |
Designated Contracting States: |
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AT BE CH DE FR GB IT LI LU NL SE |
(30) |
Priority: |
20.05.1983 US 496498
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(71) |
Applicant: Muzzy, Kenneth R. |
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() |
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(72) |
Inventor: |
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- Hogenhout, Fransciscus
()
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(54) |
Quick change tool chuck |
(57) A quick change toot chuck system including:
(a) a chuck having: a cylindrical housing member having a lateral aperture for receiving
two diametrically opposed jaw members; two jaw members for gipping the shank of a
tool, each of the jaw members having an outer surface which is sloped, and each of
the jaw members also having an inner surface forming one or more driving surfaces
for rotating the shank of a tool and multiple holding surfaces for clamping the shank
of the tool; and a cylindrical sleeve member slidably positioned over the housing
member, the sleeve member having two diametrically opposed wedge members positioned
on the interior surface thereof; and
(b) a tool having: a work performing portion; and a round shank connected to the work
performing portion, the shank having multiple identical planar surfaces recessed therein,
each of the planar surfaces being spaced an equal distance from the crown of the shank,
and at least two of the planar surfaces being in contact with at least two of the
driving surfaces of the jaw members.